Tornado touches down near Toulouse, France on April 29

Only minor damage was reported including collapsed walls and uprooted trees. Meteorologic reported the tornado as an F1, which would mean winds of 73-112 mph.

Pollution masked warming over eastern US in 20th century

A study suggests eastern U.S. was kept cooler than it would have been otherwise in 20th century due to a particular type of pollution from coal-fired power plants.

OECD environmental outlook for 2050 is grim

A sobering from OECD warning of costly consequences by 2050 if actions are not taken to put the world on a sustainable path.

View from space: U.S. national parks

National Parks Week in the U.S. extends through this weekend, and admission is free at all 397 national parks. If you can't go, check out these cool photos.

Rare white killer whale caught on camera

A team of scientists have spotted an extremely rare white killer whale off the coast of Russia. Check out the amazing images and video!

Bright is the new black in cities, study shows

Black roofs can be up to 30°C (54°F) hotter than brigiht roofs - those fitted to grow plants - or plain ordinary white roofs, according to scientists in New York.

Killer asteroids struck Earth 1.8 to 3.8 billion years ago

Rocks in Australia contain sand-sized circles and particles, thought to be formerly molten droplets ejected into space when killer asteroids struck Earth.

Ocean currents, not warm air, are driving Antarctic ice loss

West Antarctica loses ice to the sea even if a summer isn't warm enough to melt snow on top of the glaciers. The oceans do the work from below, a study shows.

NOAA Weather Radio more reliable than a tornado siren

Tornado sirens are meant to save lives, but the six people killed by a tornado in Oklahoma never heard a siren. People should rely on a NOAA Weather Radio.

Best image yet of ongoing activity at Popocatépetl volcano

Mexico’s Popocatepetl volcano has been active since mid-April 2012, and now NASA has produced the best image yet of this spectacular volcano.